As standard, all Grundfos SP borehole pump models are made entirely of stainless steel DIN W.-Nr. 1.4301 (AISI 304). Where particularly aggressive liquids are encountered, the SP Grundfos borehole pumps are available in extra high grade stainless steel DIN W.-Nr. 1.4401 (AISI 316), or, for severe conditions, DIN W.-Nr. 1.4539 (AISI 904 L).
Please note that we supply the whole range of Grundfos pumps. Please contact us for a price if you require a model that is not shown.